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From "Tom White (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-4070) [Hive] Provide a mechanism for registering UDFs from the query language
Date Wed, 17 Sep 2008 14:31:47 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-4070?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tom White updated HADOOP-4070:
------------------------------

    Attachment: hadoop-4070-v2.patch

Here's an updated patch that addresses some of the comments.

* I've reverted the change to ExecDriver. (Set hive.aux.jars.path as a session variable to
pick up jars.)
* AdminWork is now FunctionWork. Other descriptors can be added to this class as needed.
* The syntax is now 
{noformat}
CREATE TEMPORARY FUNCTION my_udf AS 'com.example.MyUdf';
{noformat}
* I've added a client unit test which uses a test UDF packaged in a jar.

> [Hive] Provide a mechanism for registering UDFs from the query language
> -----------------------------------------------------------------------
>
>                 Key: HADOOP-4070
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4070
>             Project: Hadoop Core
>          Issue Type: New Feature
>          Components: contrib/hive
>            Reporter: Tom White
>         Attachments: hadoop-4070-v2.patch, hadoop-4070.patch
>
>
> UDFs (user defined functions) in Hive are currently actually built-in functions. This
issue is to develop a packaging and registration mechanism so users can add their own functions
at runtime.

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